Emission Lines of Fe xiv, Fe xv, and Fe xvi in the Extreme Ultraviolet Region 40–100 Å

Lepson, J. K.; Beiersdorfer, P.; Brown, G. V.; Liedahl, D. A.

doi:10.3847/1538-4357/acbc17

Title: Emission Lines of Fe xiv, Fe xv, and Fe xvi in the Extreme Ultraviolet Region 40–100 Å

Journal Article · Thu Mar 23 00:00:00 EDT 2023 · The Astrophysical Journal

DOI:https://doi.org/10.3847/1538-4357/acbc17· OSTI ID:2204096

^[1];

^[2]; Liedahl, D. A. ^[2]

University of California, Berkeley, CA (United States)
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)

We report on emission spectra of iron in the extreme ultraviolet recorded at an electron density of ~10¹¹ cm^-3 on the Lawrence Livermore electron beam ion trap facility. We present a summary of the observed emission lines, including wavelengths and emission intensities, and present spectra of pure Fe xiv through Fe xvi emission derived from our measurements in the 40–100 Å wavelength range. We show that spectral models, especially the current version of CHIANTI v10.0, describe the M-shell emission from these three charge states of iron reasonably well, and we are able to verify several transitions in CHIANTI for the first time.

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Research Organization:: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)

Sponsoring Organization:: USDOE National Nuclear Security Administration (NNSA)

Grant/Contract Number:: AC52-07NA27344

OSTI ID:: 2204096

Report Number(s):: LLNL-JRNL-831238; 1048104

Journal Information:: The Astrophysical Journal, Vol. 946, Issue 1; ISSN 0004-637X

Publisher:: IOP PublishingCopyright Statement

Country of Publication:: United States

Language:: English

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Title: Emission Lines of Fe xiv, Fe xv, and Fe xvi in the Extreme Ultraviolet Region 40–100 Å

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